How To Build A Deck Over A Flat Roof Correctly

This deck was built about 7 or 8 years ago and is supported by 4x4 posts which are going through the roof and on top of the rafters on the second floor.

How to build a deck over a flat roof correctly.

The sleepers aren t fastened in place and the floor floats. Inspect the roof to make sure it is in good condition and acquire any permits that may be required by the local zoning board. I live in a home in nj 4a 5a climate zone border with a 3rd floor wooden deck over a a slightly pitched flat roof with conditioned living space below it. Framing the roof place the sleepers.

So i will not be able to put the sleepers parallel to the slope. Before beginning however it is important to do two things. The ceiling on the second floor is leaking now and i m pretty sure the deck isn t too. Strips of 4 in wide epdm provide a layer of protection between the sleepers and the roof.

Building a deck on a flat roof is neither difficult nor time consuming. A properly constructed epdm roof should last 40 or more years. Hi thanks for the interesting blog. It s best to build the wooden deck in removable sections for cleaning and maintenance of the rubber roof and repair of the membrane if ever needed.

I ll be reviewing the bison products pedestal and deck tile system on this episode of the build show. Two people can install a brand new deck in a weekend with little or no previous construction experience. Flat roofs are more susceptible to leaking than pitched roofs. That means there are 4 slopes leading the rain or melted snow water to the drain.

Shed roofs project as a single plane roof pitched away from the house. Still leaf debris and organic matter that gets through the slats in the decking will build up on the rubber roof and hold moisture. Some people also like the feel of having a higher deck roof so this could be an option you might want to look at. You might want to use the same wood or something else.

Some shed roofs are designed to be nearly flat. When you start building your roof over the deck try and get some material that compliments the decking. Always try to match the house roof pitch angle and overhang for your shed roof. I am also planning to make a deck on my flat roof but i have some questions.